Can I swim in rainy days?

You can't swim in rainy days, which is prone to accidents.

1, reason:

(1) From tall buildings to wooden poles you hold aloft, from holes to wide waters, lightning strikes are targets. Tens of millions of volts of charge and hundreds of thousands of amperes of current can kill people in an instant.

(2) Whether the weather forecast is thunderstorm or you are swimming and hear thunder, it means that lightning is not far from you. If lightning falls into water, people and water are conductors, and the average resistance of organs and tissues in the body is 700 ohms. The greater the resistance, the more serious the consequences. Once the human body is hit by lightning in the water, it will go into shock and lead to drowning.

Leave the waters (reservoirs, ponds, outdoor swimming pools, lakes) immediately during a thunderstorm, leave like lightning, and take refuge in a dry environment. Excluding trees, rocks, squares and metal objects. Go back to the dressing room in the swimming pool, go back to the car in the wild water, don't stand idly by in the water, you can't hide from the electric field on the shore. Don't trade luck for your life.

(3) With the rainfall, the water quality in water areas (including outdoor swimming pools) obviously deteriorates, and the turbidity increases, which affects health. After the rain, the regular outdoor swimming pool should be reprocessed. If it is a natural water area, rainfall will bring about changes in depth and temperature, thus changing the overall environment. In addition, raindrops falling into the water will make a lot of noise, interfere with swimmers' hearing, reduce their sensitivity to the surrounding environment, greatly affect their attention and reduce the quality of swimming exercise.

(4) Swimming should be carried out under the premise of safety, including the safety of water, climate, water quality, facilities and swimming partners.

2. The exercise value of swimming:

Improving the cardiovascular system Swimming plays a very important role in improving the cardiovascular system. The stimulation of cold water can promote blood circulation through heat regulation and metabolism; In addition, the pressure and resistance of water also play a special role in the heart and blood circulation. When swimming on the water, the water pressure on the body has reached 0.02-0.05 kg per square centimeter. When diving, with the increase of depth and the change of physical condition, the pressure will increase, and the acceleration of swimming speed will also increase the pressure load, and the muscle tissue of atrium and ventricle can be strengthened.